Comparative Analysis between Three Different Lumbar Decompression Techniques (Microscopic, Tubular, and Endoscopic) in Lumbar Canal and Lateral Recess Stenosis: Preliminary Report

Table 2

The Comparison between 3 different decompressive techniques.

	Endoscopic; (N=164)	Tubular; (N=34)	Microscopic; (N=72)
Anesthesia	Epidural (N=52); or General (N=112)	Epidural	Epidural
Skin incision (mm)	10	16-18	25-35
Retractor for; working space	Ø 10mm Cannula	Ø 1.6~1.8mm Tube	Taylor retractor
Operative; instruments	Ø 3.5, 4.5mm burr; Endoscopic Kerrison punch; (3, 4, 5 mm)	Ø 5, 6mm burr; Kerrison punch; (3,5 mm)
Hemostasis	Radiofrequency,; Irrigative pressure	Bipolar, Suction